6 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Ondrej Niesner | Jaromir Buksa | 1-0 | B94 | Round 7: Ondrej Niesner - Jaromir Buksa | 2021-09-28 |
| Ondrej Niesner | Zdenek Plasek | 0-1 | A01 | Round 9: Ondrej Niesner - Zdenek Plasek | 2021-09-28 |
| Ondrej Niesner | Karel Dusbaba | 0-1 | C02 | Round 4: Ondrej Niesner - Karel Dusbaba | 2021-09-26 |
| Ondrej Niesner | Bayarjavkhlan Delgerdalai | 0-1 | A37 | Round 2: Ondrej Niesner - Bayarjavkhlan Delgerdalai | 2021-09-25 |